Man, that's really sad
I feel with you since I also seem to have lost my breeding male this week
btw guessing from the make of your tank I guess you're from Europe?

Sad to hear man... I'm glad you still have other male(s) left, but losing an animal is always hard. I recently read an older article (2010) published by Fred Vosse about his experience with Histrionica in Colombia and his research states that females can be pretty difficult in terms of choosing a male to breed with. So I hope Your other male(s) is able to please the misses Bull.